Nonlinear two-dimensional velocity profile inversion in the time domain

M. Moghaddam, W. C. Chew

Research output: Chapter in Book/Report/Conference proceedingConference contribution


The authors develop a time-domain method to solve the nonlinear inverse scattering problem for two-dimensional dielectric objects. The problem is formulated in terms of a time dependent volume integral equation using line sources with pulse excitations as transmitters. The unknown object is expressed as a finite summation of known functions, giving rise to an approximate representation of the original problem. The solution is obtained by performing Born-type iterations on the resulting integral. A variety of permittivity profile reconstructions is presented. The superresolution capability of this algorithm is demonstrated. It is concluded that the high-resolution feature, along with the feasible experimental setup, efficient computer run times, and rapid data acquisition, renders the present method an attractive candidate for practical applications.

Original languageEnglish (US)
Title of host publication1991 Digest
PublisherPubl by IEEE
Number of pages4
ISBN (Print)0780301447
StatePublished - 1991
Externally publishedYes
EventAntennas and Propagation Society Symposium - London, Ont, Can
Duration: Jun 24 1991Jun 28 1991

Publication series

NameAP-S International Symposium (Digest) (IEEE Antennas and Propagation Society)
ISSN (Print)0272-4693


OtherAntennas and Propagation Society Symposium
CityLondon, Ont, Can

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Nonlinear two-dimensional velocity profile inversion in the time domain'. Together they form a unique fingerprint.

Cite this